pingu_conf: accept fwmark as hex
pingu_conf: error checking for route-table

and support route-table as hexadecimal as a bonus.
pingu_conf: error checking for required-hosts-online and rule-priority

and support hexadecimal values
pingu_conf: improve error checking for load-balance
pingu_conf: error checking for retry and required
pingu_conf: display config file name on integer errors
pingu_conf: display filename for all config parsing errors